Antenna



FIG. 1 is a front perspective view of an antenna showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a rear perspective view thereof.

The broken lines in the figures show portions of the antenna which formno part of the claimed design.

CLAIM We claim the ornamental design for an antenna, as shown anddescribed.